Foot rest



FIG. 1 is a front perspective view of a foot rest according to my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left side view being a mirror image of the right side view;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view. 

The ornamental design for a foot rest, as shown and described. 